philv
I'm Awesome
Hey guys, I'm working on my dad's 98 with 5.7. the truck sometimes will start and run normal and other times it'll start and die. It will even die while driving and sometimes it won't start at all. When it won't start you could wiggle the fuel pump relay and it would start. I hooked up a fuel gauge and koeo it registers 62psi and drops to 0 in roughly 3-4 sec. Koer the fuel pressure reads 54psi and sometimes it drops to 40, stumbles and dies. Then cycle the key and fires back up. What should be the first things to diagnose? I was thinking electrical, but with the pump dropping pressure I'm not really sure now.